Fullriver DCG26-12 · Wheelchair battery 12V 26Ah AGM
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DCG26-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 26Ah (c20) |
| Capacity (C5) | 22 5Ah (c5) |
| Technology | AGM |
| Length | 165.00 mm |
| Width | 176.00 mm |
| Height | 125.00 mm |
€131.10
VAT included
4,75/5★★★★★22 reviewsVerified purchases
- ★★★★Victor Manuel Rubio:
Gracias a vosotros pude instalar correctamente la batería
- ★★★★Mateo Jimenez:
Pedí la batería un lunes a las 7 y me llegó el martes a las 4
- ★★★★★Miguel Angel Martin:
Me ayudaron con la instalación de mi batería
Fullriver DCG26-12 12V 26Ah is a sealed AGM/GEL battery for daily mobility use: maintenance-free, no risk of spills, and thousands of useful cycles well beyond a starter battery.
Why this wheelchair battery?
- Daily cycling without wearhandles deep discharges without losing capacity
- Sealed AGM/GELno maintenance, no risk of spills
- Thousands of useful cyclesover its full lifetime
Voltage
12 V
Capacity
26 Ah
Dimensions
165×176×125 mm
Technology
AGM
Weight
9,1 kg
Model
DCG Series
Marine battery Fullriver DCG26-12 DCG 26Ah 12V
12VVoltage
26AhCapacity
9.10kgWeight
With 26 Ah at 12 V, the Fullriver DCG26-12 from the DCG range is built for motor and sailing boats, both for engine starting and onboard services. Its 165 × 176 × 125 mm make it the exact replacement for the 26 Ah battery fitted as standard to many boats.
- Ready for starting outboard and inboard engines.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Resistant to humidity and salt air.
- Sealed: no spills or gases in the locker.
Size, terminals and hold-down of the Fullriver DCG26-12
The Fullriver DCG26-12 is made in the 165 × 176 × 125 mm format and weighs 9.10 kg. It uses M6 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
What the Fullriver DCG26-12 is for
The Fullriver DCG26-12 is designed for motor and sailing boats, both for engine starting and onboard services. If it is your starter battery, run the services from a separate battery; if it is a service battery, avoid routinely discharging it beyond 50%. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 9.10 kg and M6 terminals.
The Fullriver DCG26-12: DCG range and AGM technology
The DCG26-12 is part of the Fullriver DCG range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.
Why choose Fullriver batteries
Fullriver specialises in deep-cycle AGM batteries for mobility, marine, solar and traction. Its DC and HC series are known for their tolerance to deep discharge and long cycle life. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Warranty and coverage
The Fullriver DCG26-12 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
Care and maintenance
Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.
When you get it and how to return it
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
BCOM-FULLRIVER-DCG26-12
Data sheet
- Brand
- FULLRIVER
- Reference
- DCG26-12
- Model
- FULLRIVER DCG
- Voltage (V)
- 12
- Length
- 165.00 mm
- Width
- 176.00 mm
- Height
- 125.00 mm
- Weight
- 9.1 Kgs
- Technology
- AGM
- Terminal type
- M6
- Capacity (C20)
- 26Ah (c20)
- Capacity (C5)
- 22 5Ah (c5)
Specific References
- MPN
- DCG26-12
4,75/5
Verified purchasesLatest verified reviews
★★★★★Victor Manuel Rubio
06/07/2026Gracias por sus indicaciones
Gracias a vosotros pude instalar correctamente la batería
★★★★★Mateo Jimenez
04/02/2026Tiempo de entrega correcto
Pedí la batería un lunes a las 7 y me llegó el martes a las 4
★★★★★Miguel Angel Martin
03/01/2026La mejor página
Me ayudaron con la instalación de mi batería
★★★★★Julio Cruz
26/10/2025Me indicaron cómo instalar la batería
Gracias a vosotros pude instalar correctamente la bateria
Recommended accessories
How to change the battery
Guide to replace a marine battery (cranking or house) in 20-30 minutes. Moisture and vibration in marine environments require reinforced hold-downs and sealed copper terminals.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery compartment
Usually under the passenger bench, engine room or a dedicated ventilated compartment. Verify the compartment is dry and well ventilated before opening.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Marine batteries are heavy (15-50 kg). If it has rope handles, use them; otherwise have a carry strap ready. Secure the new one with metal hold-downs (not plastic) to resist sea-state vibration.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify circuit + water protection
Apply dielectric grease on terminals to prevent salt-air corrosion. Check the engine charging circuit delivers 13.8-14.4 V at 2,000 rpm.
Frequently asked questions
Is the DCG26-12 model AGM? What does this technology offer?
Yes. The DCG26-12 from Fullriver uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for boats with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How is the Fullriver DCG26-12 battery installed in the vehicle?
In most boats it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On boats with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How many years does this battery last?
Expected lifespan of the Fullriver DCG26-12 is 5 to 8 years in mild-climate boat use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the measurements of the DCG26-12 model?
Dimensions (length × width × height) are 165×176×125 mm — also written as 165x176x125 mm — following the European DIN standard. Always measure the space in your boat before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Will the Fullriver DCG26-12 battery fit my boat?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The DCG26-12 typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the DCG26-12 model?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop boats. See the "Equivalents" section to view recommended options at the same performance level.
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